CN211131066U - Mobile bed, medical imaging device, and MRI device - Google Patents

Abstract

An embodiment of the present invention relates to a mobile bed, a medical image capturing device, and an MRI device, wherein the mobile bed includes a main body, a handle portion, wheels, a bed bottom portion, a connecting portion, a rotating mechanism, and a rotating operation portion. The main body has a top plate on which a subject is placed. The handle portion is provided on the main body. The wheels move over the ground to move the body. The bedding bottom is positioned below the main body. The connecting portion connects the wheel and the bed bottom, supports the wheel rotatably in the moving direction, and connects the bed bottom and the connecting portion rotatably in the horizontal direction of the floor. The rotating mechanism is arranged on the bottom of the bed, and rotates the connecting part by taking the connecting part as a rotating center. The rotation operation unit is provided on or near the handle unit, is connected to the rotation unit, and operates the rotation unit to rotate the connection unit. Through the utility model discloses, can alleviate the burden of the operator that accompanies the removal of bedroom platform.

Description

Mobile bed, medical imaging device, and MRI device

Technical Field

The present invention relates to a mobile bed, a medical imaging apparatus, and an MRI apparatus, and more particularly, to a mobile bed, a medical imaging apparatus, and an MRI apparatus that can reduce the burden on an operator who moves the bed.

Background

As a bed for a medical image capturing apparatus, there is a mobile bed that is not mounted on the floor but has wheels so as to be movable. This makes it possible to use both the transportation of the bed itself and the movement of the subject to a predetermined imaging-enabled area position, thereby ensuring a large space around the medical imaging apparatus. Examples of medical imaging apparatuses include a magnetic resonance imaging apparatus (MRI apparatus), an X-ray computed tomography apparatus (X-ray CT apparatus), a positron emission tomography apparatus (PET apparatus), and a single photon emission computed tomography apparatus (SPECT apparatus). When imaging a subject, such a movable bed for a medical imaging apparatus moves the bed to a predetermined position of the medical imaging apparatus with the subject placed thereon, and performs imaging while being connected and fixed to the medical imaging apparatus. However, such a mobile bed is heavy when moving with the subject placed thereon, and thus movement control is difficult. Therefore, it is difficult to move the bed to a predetermined position for connection and fixation with the medical image capturing apparatus.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a movable bed, a medical imaging apparatus, and an MRI apparatus, which can easily move a bed and can reduce the load on an operator accompanying the movement of the bed.

In order to achieve the above object, a movable bed according to an embodiment of the present invention includes a main body, a handle portion, wheels, a bed bottom portion, a connecting portion, a rotating mechanism, and a rotating operation portion. The main body has a top plate on which a subject is placed. The handle portion is provided on the main body. The wheels move over the ground to move the body. The bedding foundation is positioned below the main body. The connecting portion connects the wheel to the bed bottom portion, supports the wheel so as to be rotatable in the moving direction, and connects the connecting portion to the bed bottom portion and the connecting portion so as to be rotatable in a horizontal direction of the floor surface. The rotation mechanism is disposed on the bed bottom, and rotates the connection portion around the connection portion as a rotation center. The rotation operation unit is provided on or near the handle unit, is connected to the rotation unit, and operates the rotation unit to rotate the connection unit.

In addition, the medical imaging apparatus according to an embodiment of the present invention includes a movable bed connected to a medical imaging apparatus main body of the medical imaging apparatus. The movable type bed includes a main body, a handle portion, wheels, a bed bottom portion, a connecting portion, a rotating mechanism, and a rotating operation portion. The main body has a top plate on which a subject is placed. The handle portion is provided on the main body. The wheels move over the ground to move the body. The bedding foundation is positioned below the main body. The connecting portion connects the wheel to the bed bottom portion, supports the wheel so as to be rotatable in the moving direction, and connects the connecting portion to the bed bottom portion and the connecting portion so as to be rotatable in a horizontal direction of the floor surface. The rotation mechanism is disposed on the bed bottom, and rotates the connection portion around the connection portion as a rotation center. The rotation operation unit is provided on or near the handle unit, is connected to the rotation unit, and operates the rotation unit to rotate the connection unit.

In addition, the MRI apparatus according to an embodiment of the present invention includes a movable bed connected to an MRI apparatus main body of the MRI apparatus that houses a magnet. The movable type bed includes a main body, a handle portion, wheels, a bed bottom portion, a connecting portion, a rotating mechanism, and a rotating operation portion. The main body has a top plate on which a subject is placed. The handle portion is provided on the main body. The wheels move over the ground to move the body. The bedding foundation is positioned below the main body. The connecting portion connects the wheel to the bed bottom portion, supports the wheel so as to be rotatable in the moving direction, and connects the connecting portion to the bed bottom portion and the connecting portion so as to be rotatable in a horizontal direction of the floor surface. The rotation mechanism is disposed on the bed bottom, and rotates the connection portion around the connection portion as a rotation center. The rotation operation unit is provided on or near the handle unit, is connected to the rotation unit, and operates the rotation unit to rotate the connection unit.

According to the present embodiment, since the wheel is controlled to rotate in the horizontal direction of the floor by hand while the bed is being moved, the moving direction of the bed can be adjusted while the bed is being moved, the bed can be easily moved, and the burden on the operator involved in the movement of the bed can be reduced.

Drawings

Fig. 1 is a perspective view showing an external appearance of a mobile bed for a medical image capturing apparatus;

FIG. 2 is a plan view of the front of a bed on which an exterior member of a rotating mechanism is mounted;

fig. 3 is a plan view of the front of the bed and the vicinity of the handle portion before the rotation operation of the first embodiment in which the exterior member of the rotation mechanism is detached;

fig. 4 is a plan view of the front of the bed and the vicinity of the handle portion where the exterior member of the rotation mechanism is detached in the rotation operation of the first embodiment;

fig. 5 is a plan view of the front of the bed and the vicinity of the handle portion before the rotation operation of the second embodiment in which the exterior member of the rotation mechanism is detached;

fig. 6 is a plan view of the front of the bed and the vicinity of the handle portion where the exterior member of the rotation mechanism is detached in the rotation operation of the second embodiment;

fig. 7 is a plan view of the front of the bed and the vicinity of the handle portion before the rotation operation of the third embodiment in which the exterior member of the rotation mechanism is detached;

fig. 8 is a plan view of the front of the bed and the vicinity of the handle portion where the exterior member of the rotation mechanism is detached in the rotation operation of the third embodiment.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same functional configurations and steps having the same processing contents, and redundant description is omitted. In the present embodiment, the medical image capturing apparatus to which the present invention is applied will be described by taking a magnetic resonance imaging apparatus as an example, but the medical image capturing apparatus may be of other types as long as it can capture a medical image of a subject using the mobile bed of the present invention.

The side connected to the medical imaging apparatus is the front of the mobile bed for medical imaging apparatus, and the handle side is the rear. The right hand side of the operator standing on the handle side of the mobile bed for a medical image capturing apparatus is referred to as the right side, and the left hand side is referred to as the left side. That is, the pair of right and left wheels located on the front side is referred to as the front wheel. The right-hand wheel and the left-hand wheel of the mobile bed for medical imaging apparatus are the right-hand wheel and the left-hand wheel, respectively, when the operator stands on the handle side of the mobile bed.

(first embodiment)

First, a schematic structure of a mobile bed for a medical image capturing apparatus according to a first embodiment will be described with reference to fig. 1 and 2. Fig. 1 is a perspective view showing an external appearance of a mobile bed for a medical image capturing apparatus. Fig. 2 is a plan view showing the front of the bed on which the exterior member of the rotation mechanism is mounted.

As shown in fig. 1 and 2, the mobile bed 100 for a medical imaging apparatus according to the present embodiment includes: a main body (i.e., a main body) 101 having a top plate on which a subject is placed; a handle portion 103 provided to the main body 101; wheels 102 that move the main body 101 while moving on the ground; a bed bottom 104 located below the main body 101; a connection portion 201 that connects the wheel 102 and the bed bottom 104, supports the wheel 102 rotatably in the moving direction, and connects the connection portion 201 to the bed bottom 104 and the connection portion 202 rotatably in the horizontal direction of the floor surface; a rotation mechanism 105 that is disposed on the bed bottom 104 and rotates the connection portion 201 around the connection portion 202 as a rotation center; and a rotation operation unit 106 provided on the handle unit 103 or in the vicinity of the handle unit 103, connected to the rotation mechanism 105, and configured to operate the rotation mechanism 105 to rotate the connection unit 201. The front right connecting portion 2011 of the connecting portion 201 corresponds to the front right wheel 1021 which is paired left and right, and the front left connecting portion 2012 corresponds to the front left wheel 1022.

The movable bedding for medical imaging device 100 of fig. 1 and 2 includes four wheels 102, the front right wheel 1021 and the front left wheel 1022 are rotatably supported in the moving direction by the front right connecting portion 2011 and the front left connecting portion 2012, respectively, on the bedding bottom 104, and the front right wheel 1021 and the front left wheel 1022 can be rotated in the horizontal direction on the floor surface about the first connecting portion 2021 and the fourth connecting portion 2022 by the rotating mechanism 105 disposed on the bedding bottom 104, respectively. The rear right wheel and the rear left wheel are free wheels supported by the bed bottom 104. Further, an exterior member is attached to the upper portion of the rotation mechanism 105, and the internal structure of the rotation mechanism 105 is not visible from the outside.

Next, the internal structure of the rotating mechanism 105 of the mobile bed 100 for a medical imaging apparatus according to the first embodiment will be described with reference to fig. 3 and 4. Fig. 3 is a plan view of the front of the bed and the vicinity of the handle portion of the exterior member of the swing mechanism before the swing operation. Fig. 4 is a plan view of the front of the bed, the rear of the bed, and the vicinity of the handle portion, where the outer covering member of the rotation mechanism is removed during the rotation operation.

As shown in fig. 3, the front right wheel 1021 is supported by the bed bottom 104 via the front right connection 2011 so as to be rotatable in the moving direction of the movable bed 100 for a medical image capturing apparatus. The front right connection 2011 is the first link 301 having the first coupling 2021 and the second coupling 303 on the bed bottom 104 side of the front right wheel 1021.

The front left wheel 1022 is supported by the bed bottom 104 by the front left connecting portion 2012 so as to be rotatable in the moving direction of the movable bed 100 for a medical image capturing apparatus. The front left connecting portion 2012 is a third link 306 having a fourth connecting portion 2022 and a third connecting portion 305 on the bed bottom 104 side of the front left wheel 1022.

The rotation operation unit 106 is provided near the handle unit 103, and includes a left rotation operation unit 1062 and a right rotation operation unit 1061. The left rotation operation part 1062 and the right rotation operation part 1061 are, for example, rotatably coupled to a member connecting the grip part 103 and the main body part 101, and are provided at the following positions near the grip part 103: when the operator holds the handle unit 103 and moves the movable bed 100 for a medical imaging apparatus, the operator can operate the left rotary operation unit 1062 or the right rotary operation unit 1061 without removing his or her hand from the handle unit 103. Of course, the handle unit 103 may be provided with a left rotation operation unit 1062 and a right rotation operation unit 1061.

The rotation mechanism 105 includes: a second link 304 that is rotatably coupled to the first link 301 with the second coupling portion 303 as a rotation center, and is rotatably coupled to the third link 306 with the third coupling portion 305 as a rotation center; a first wire 3081 connecting the second connecting part 303 and the left rotation operating part 1062; and a second wire 3082 that connects the third connecting part 305 and the right rotational operation part 1061.

In the structure of such a mechanism, the operation of the mechanism in the case where the operator does not remove his or her hand from the grip unit 103 and operates the left rotation operation unit 1062 in order to adjust the movement direction of the movable bed 100 for a medical image capturing apparatus to the left while the operator holds the grip unit 103 and moves the movable bed 100 for a medical image capturing apparatus will be described.

As shown in fig. 4, when the operator operates the left rotating operation part 1062, the attractive force F acts on the first wire 3081 connected to the left rotating operation part 1062 toward the rear of the body 101 (in the direction toward the handle part 103 connected to the body 101) of the movable bed 100 for a medical image capturing device, and the second connecting part 303 connected to the end of the first wire 3081 on the opposite side of the left rotating operation part 1062 moves toward the rear of the body 101 (in the direction toward the handle part 103 connected to the body 101).

As the second coupling portion 303 moves, the first link 301 rotates in the horizontal direction with respect to the ground around the first coupling portion 2021 as the rotation center, and as the rotation occurs, the front right wheel 1021 rotates in the horizontal direction of the ground so as to face leftward.

When the second coupling portion 303 moves rearward of the body 101 (in the direction toward the handle portion 103 coupled to the body 101), since the second coupling portion 303 and the third coupling portion 305 are coupled by the second link 304 and the distance does not change, a force acts on the third coupling portion 305 in a direction from the body 101 toward the left outside, and the third coupling portion 305 moves toward the outside of the body 101.

When the third coupling section 305 moves to the outside of the body section 101, the third link 306 that couples the third coupling section 305 and the fourth coupling section 2022 rotates in the horizontal direction with respect to the ground surface around the fourth coupling section 2022 as the rotation center, and the front left wheel 1022 rotates in the horizontal direction of the ground surface so as to face the left in accordance with the rotation.

In this way, when the operator wants to adjust the movement direction of the mobile medical imaging apparatus bed 100 to the left while holding the handle 103 and moving the mobile medical imaging apparatus bed 100, if the operator operates the left rotating operation unit 1062 without removing the hand from the handle 103, the movement direction of the bed can be adjusted to the left.

Further, since the left rotation operating part 1062 is coupled to a member that couples the grip part 103 and the body part 101 to each other, for example, in a rotatable manner, and the left rotation operating part 1062 and the second coupling part 303 are coupled to each other by the first wire 3081, the degree of rotation is increased or decreased by operating the left rotation operating part 1062, and the moving distance of the second coupling part 303 can be adjusted, and thus the angle of the front right wheel 1021 and the front left wheel 1022 toward the left can be adjusted.

On the other hand, when the operator wants to adjust the movement direction of the mobile bed 100 for a medical image capturing apparatus to the right while holding the grip 103 and moving the mobile bed 100 for a medical image capturing apparatus, the operator may operate the right rotary operation unit 1061 without removing the hand from the grip 103.

That is, when the operator operates the right rotational operation unit 1061, the attraction force acts on the second wire 3082 coupled to the right rotational operation unit 1061 toward the rear of the body 101 of the movable bed 100 for a medical image capturing device (in the direction of the handle unit 103 coupled to the body 101), and the third coupling unit 305 coupled to the end of the second wire 3082 opposite to the right rotational operation unit 1061 moves toward the rear of the body 101 (in the direction of the handle unit 103 coupled to the body 101).

As the third coupling unit 305 moves, the third link 306 rotates in the horizontal direction with respect to the ground around the fourth coupling unit 2022 as the rotation center, and as the rotation occurs, the front left wheel 1022 rotates in the horizontal direction of the ground so as to face rightward.

When the third coupling portion 305 moves rearward of the body 101 (in the direction toward the handle portion 103 coupled to the body 101), since the second coupling portion 303 and the third coupling portion 305 are coupled by the second link 304 and the distance does not change, a force acts on the second coupling portion 303 in a direction from the body 101 to the right outside, and the second coupling portion 303 moves outward of the body 101. When the second coupling portion 303 moves outward of the body 101, the first link 301 that couples the second coupling portion 303 and the first coupling portion 2021 rotates in the horizontal direction with respect to the ground surface about the first coupling portion 2021 as the rotation center, and the front right wheel 1021 rotates in the horizontal direction of the ground surface so as to face rightward along with the rotation.

Further, since the second coupling unit 303 and the third coupling unit 305 are coupled by the second link 304, when the second coupling unit 303 and the third coupling unit 305 move in the horizontal direction with respect to the ground surface, the distance between the second coupling unit 303 and the third coupling unit 305 does not change, and therefore, the angle at which the front right wheel 1021 and the front left wheel 1022 are oriented leftward when the left rotation operation unit 1062 is operated is the same, and the angle at which the front right wheel 1021 and the front left wheel 1022 are oriented rightward when the right rotation operation unit 1061 is operated is the same.

As described above, according to the present embodiment, when the operator wants to change the moving direction of the mobile bed 100 for a medical image capturing apparatus while holding the handle 103 and moving the mobile bed 100 for a medical image capturing apparatus, the operator can adjust the moving direction of the bed while moving the bed because the operator operates the rotating operation unit 106 without removing the hand from the handle 103.

(second embodiment)

A mobile bed for a medical image capturing apparatus according to a second embodiment will be described with reference to fig. 1, 2, 5, and 6. The configuration in fig. 1 and 2 is the same as that of the first embodiment except for the configuration of the rotation operation portion 106.

The internal structure of the rotating mechanism 105 of the mobile bed 100 for a medical imaging apparatus according to the second embodiment will be described with reference to fig. 5 and 6. Fig. 5 is a plan view of the front of the bed and the vicinity of the handle portion before the rotation operation of the second embodiment in which the exterior member of the rotation mechanism is detached. Fig. 6 is a plan view of the front side of the bed and the vicinity of the handle portion of the exterior member of the rotation mechanism removed during the rotation operation according to the second embodiment.

As shown in fig. 5, the front right wheel 1021 is supported by the bed bottom 104 via the front right connection 2011 so as to be rotatable in the moving direction of the movable bed 100 for a medical image capturing apparatus. The front right connection 2011 is the first link 301 having the first coupling 2021 and the second coupling 303 on the bed bottom 104 side of the front right wheel 1021.

The front left wheel 1022 is supported by the bed bottom 104 by the front left connecting portion 2012 so as to be rotatable in the moving direction of the movable bed 100 for a medical image capturing apparatus. The front left connecting portion 2012 is a third link 306 having a fourth connecting portion 2022 and a third connecting portion 305 on the bed bottom 104 side of the front left wheel 1022.

The rotation operation unit is provided in the handle unit 103, and includes a left rotation operation unit 5062 and a right rotation operation unit 5061. The left rotation operating unit 5062 and the right rotation operating unit 5061 are switches provided in the handle unit 103, for example, and can instruct the front right wheel 1021 and the front left wheel 1022 to perform leftward or rightward adjustment by switching the switches on and off. The left rotation operating unit 5062 and the right rotation operating unit 5061 may be multi-stage switches, and the front right wheel 1021 and the front left wheel 1022 may be adjusted in the left or right direction in multiple stages. The left rotation operating unit 5062 and the right rotation operating unit 5061 may rotate the wheel to the left or right during the pressing, and the left or right rotation operation of the wheel may be stopped when the pressing is maintained.

Further, the left rotation operating unit 5062 and the right rotation operating unit 5061 are provided on the handle unit 103 at the following positions: in a state where the operator does not remove the hand from the handle unit 103 while the operator holds the handle unit 103 and moves the movable bed 100 for a medical imaging apparatus, the position on the handle unit 103 such as the left rotation operating unit 1062 or the right rotation operating unit 1061 can be operated by the thumb or the index finger, for example.

The rotation mechanism 105 includes: a motor 509 provided on the bed bottom 104; a gear 510 rotated by the rotational power of the motor 509; a rack 504 that is coupled to the first link 301 so as to be rotatable about the second coupling unit 303 as a rotation center, is coupled to the third link 306 so as to be rotatable about the third coupling unit 305 as a rotation center, and is engaged with the gear 510 by forming a concave-convex on a surface of the rack 504; a first lead 5081 connected between the motor 509 and the left-side rotating operation unit 5062, for transmitting a signal generated by the operation of the left-side rotating operation unit 5062 to the motor 509; a second lead 5082 connected between the motor 509 and the right rotation operating unit 5061, and configured to transmit a signal to the motor 509 in response to an operation of the right rotation operating unit 5061; and a switching unit 511 that switches the direction of the rotational force by the motor 509 based on the transmission signal generated by the operation of the left rotation operation unit 5062 and the transmission signal generated by the operation of the right rotation operation unit 5061, thereby switching the rotational direction of the gear 510. The motor 509 is supported by the bed bottom 104 so as to be rotatable in a direction parallel to the floor surface.

In the structure of such a mechanism, the operation of the mechanism in the case where the operator does not remove the hand from the grip 103 and operates the left rotating operation unit 5062 in order to adjust the moving direction of the movable bed 100 for a medical image capturing apparatus to the left while the operator holds the grip 103 and moves the movable bed 100 for a medical image capturing apparatus will be described.

As shown in fig. 6, when the operator operates the left rotation operating unit 5062, a signal is transmitted to the switching unit 511 via the first lead 5081 connected to the left rotation operating unit 5062, and rotational power capable of moving the rack 504 leftward (counterclockwise when the gear 510 is viewed from the motor 509) is transmitted from the motor 509 to the gear 510, so that the rack 504 engaged with the gear 510 receives a force in a direction from the second coupling unit 303 toward the third coupling unit 305, and the second coupling unit 303 moves rearward (in the direction F) of the body 101.

As the second coupling portion 303 moves, the first link 301 rotates in the horizontal direction with respect to the ground surface about the first coupling portion 2021 as the rotation center, and as the rotation occurs, the front right wheel 1021 rotates in the horizontal direction of the ground surface so as to face the left. When the second coupling part 303 moves rearward (in the direction F) of the body 101, since the second coupling part 303 and the third coupling part 305 are coupled by the rack 504 and the distance does not change, a force acts on the third coupling part 305 in a direction from the body 101 to the left and the third coupling part 305 moves outward of the body 101. When the third coupling section 305 moves to the outside of the body section 101, the third link 306 that couples the third coupling section 305 and the fourth coupling section 2022 rotates in the horizontal direction with respect to the ground surface around the fourth coupling section 2022 as the rotation center, and the front left wheel 1022 rotates in the horizontal direction of the ground surface so as to face the left in accordance with the rotation.

In addition, it may be: when the left rotation operating unit 5062 is operable in multiple stages, for example, when operated with the force F, the second coupling unit 303 moves rearward of the body 101 to the extent of the force F, and the angle of the front right wheel 1021 and the front left wheel 1022 toward the left can be adjusted to increase or decrease.

In this way, when the operator wants to adjust the movement direction of the mobile medical imaging apparatus bed 100 to the left while holding the handle 103 and moving the mobile medical imaging apparatus bed 100, if the operator operates the left rotating operation unit 5062 without removing the hand from the handle 103, the movement direction of the bed can be adjusted to the left.

On the other hand, when the operator wants to adjust the movement direction of the mobile medical image capturing apparatus bed 100 to the right while holding the handle 103 and moving the mobile medical image capturing apparatus bed 100, the operator may operate the right rotating operation unit 5061 without removing the hand from the handle 103.

That is, when the operator operates right rotation operating unit 5061, a signal is transmitted to switching unit 511 via second lead 5082 connected to right rotation operating unit 5061, and rotational power capable of moving rack 504 to the right (in the opposite direction to the counterclockwise direction when gear 510 is viewed from motor 509) is transmitted from motor 509 to gear 510, whereby rack 504 engaged with gear 510 receives force in the direction from third coupling unit 305 toward second coupling unit 303, and third coupling unit 305 moves rearward of main body 101.

As the third coupling unit 305 moves, the third link 306 rotates in the horizontal direction with respect to the ground around the fourth coupling unit 2022 as the rotation center, and as the rotation occurs, the front left wheel 1022 rotates in the horizontal direction of the ground so as to face the right.

When the third coupling part 305 moves rearward of the body 101, the second coupling part 303 and the third coupling part 305 are coupled by the rack 504 and the distance does not change, so that a force acts on the second coupling part 303 in a direction from the body 101 to the right outside, and the second coupling part 303 moves outward of the body 101. When the second coupling portion 303 moves outward of the body 101, the first link 301 that couples the second coupling portion 303 and the first coupling portion 2021 rotates in the horizontal direction with respect to the ground surface around the first coupling portion 2021 as the rotation center, and the front right wheel 1021 rotates in the horizontal direction of the ground surface so as to face rightward in accordance with the rotation.

Further, since the second coupling unit 303 and the third coupling unit 305 are coupled to each other by the rack 504, when the second coupling unit 303 and the third coupling unit 305 move in the horizontal direction with respect to the ground surface, the distance between the second coupling unit 303 and the third coupling unit 305 does not change, and therefore, the angle at which the front right wheel 1021 and the front left wheel 1022 are oriented leftward when the left rotation operation unit 5062 is operated is the same, and the angle at which the front right wheel 1021 and the front left wheel 1022 are oriented rightward when the right rotation operation unit 5061 is operated is the same.

As described above, according to the present embodiment, when the operator wants to change the moving direction of the mobile bed 100 for a medical image capturing apparatus while holding the handle 103 and moving the mobile bed 100 for a medical image capturing apparatus, the operator can adjust the moving direction of the bed while moving the bed by operating the right rotating operation unit 5061 or the left rotating operation unit 5062 provided in the handle 103 in a state where the hand is not moved away from the handle 103, and thus the bed can be easily moved, and the load on the operator accompanying the movement of the bed can be reduced.

In addition, it may be: the right rotation operating unit 5061 and the left rotation operating unit 5062 are, for example, pressably connected to a member connecting the grip 103 and the body 101, and are provided at the following positions in proximity to the grip 103: when the operator holds the handle 103 and moves the movable bed 100 for a medical imaging apparatus, the operator can operate the right rotating operation unit 5061 or the left rotating operation unit 5062 without removing his or her hand from the handle 103.

Further, the direction of the rotational force transmitted from the motor 509 to the gear 510 may be switched by transmitting the instruction signals from the right and left rotational operation units 5061 and 5062 to the motor 509 through wires between the right and left rotational operation units 5061 and 5062 and the motor 509, or the direction of the rotational force transmitted from the motor 509 to the gear 510 may be switched by wirelessly transmitting the instruction signals from the right and left rotational operation units 5061 and 5062 to the motor 509 between the right and left rotational operation units 5061 and 5062 and the motor 509.

(third embodiment)

A mobile bed for a medical image capturing apparatus according to a third embodiment will be described with reference to fig. 1, 2, 7, and 8. The configuration in fig. 1 and 2 is the same as the first and second embodiments except for the configuration of the connection portion 201(2011, 2012) and the rotational operation portion 106.

Fig. 7 is a plan view showing the front of the bed and the vicinity of the handle portion before the external member of the rotation mechanism is detached in the rotation operation according to the third embodiment. Fig. 8 is a plan view of the front of the bed and the vicinity of the handle portion where the exterior member of the rotation mechanism is detached when the rotation operation is performed according to the third embodiment.

As shown in fig. 7, the front right connection part 2011 includes: a first sector gear 7011 that has a first coupling portion 2021 on the bed bottom 104 side of the right and left front right wheels 1021, and is rotatable about the first coupling portion 2021 as a rotation center; and a second sector gear 7012 having a second coupling portion 2022 on the bed bottom 104 side of the left and right wheels 1022 in a pair, and rotatable about the second coupling portion 2022 as a rotation center.

The rotation operation unit is provided on the handle unit 103 and includes a left rotation operation unit 7062 and a right rotation operation unit 7061. The left rotation operating unit 7062 and the right rotation operating unit 7061 are switches provided in the grip 103, for example, and can instruct the front right wheel 1021 and the front left wheel 1022 to perform leftward or rightward directional adjustment by switching the switches on and off. The left rotation operating unit 7062 and the right rotation operating unit 7061 may be multi-stage switches that can adjust the front right wheel 1021 and the front left wheel 1022 in the left or right direction in multiple stages. The left rotation operating unit 7062 and the right rotation operating unit 7061 may rotate the wheels to the left or right during the pressing, and the left or right rotation operation of the wheels may be stopped when the pressing is maintained.

Further, the left rotation operating portion 7062 and the right rotation operating portion 7061 are provided on the handle portion 103 at the following positions: in a state where the operator does not remove the hand from the handle portion 103 while holding the handle portion 103 and moving the movable bed 100 for a medical imaging apparatus, the position on the handle portion 103, such as the left rotational operation portion 7062 or the right rotational operation portion 7061, can be operated by the thumb or the index finger, for example.

The rotation mechanism 105 includes: a first gear 7021 that is meshed with the first sector gear 7011, is supported by the bed bottom 104, and is rotatable about the third connecting portion 7111 as a rotation center; a second gear 7022 that is meshed with the second sector gear 7012, is supported by the bed bottom 104, and is rotatable about the fourth connecting portion 7112 as a rotation center; a first motor 7031 capable of applying a rotational power to the first gear 7021; a second motor 7032 capable of applying rotational power to the second gear 7022; wires connected between the right and left rotational operation portions 7061 and 7062 and the first and second motors 7031 and 7032, and transmitting signals generated by the operation of the right and left rotational operation portions 7061 and 7062 to the first and second motors 7031 and 7032; and a switching unit 709 that switches the direction of the rotational force of the first motor 7031 and the second motor 7032 based on a transmission signal generated by the operation of the left rotation operation unit 7062 and a transmission signal generated by the operation of the right rotation operation unit 7061, thereby switching the rotational direction of the gears.

In the structure of such a mechanism, the operation of the mechanism in the case where the operator does not remove the hand from the grip 103 and operates the left-side rotational operation unit 7062 in order to adjust the movement direction of the movable bed 100 for a medical image capturing apparatus to the left while the operator holds the grip 103 and moves the movable bed 100 for a medical image capturing apparatus will be described.

As shown in fig. 8, when the operator operates the left rotation operating portion 7062, a signal is transmitted to the switching portion 709 via the fourth lead 7084 connected to the left rotation operating portion 7062, and a signal is transmitted from the switching portion 709 to the first motor 7031 via the first lead 7081, so that the first gear 7021 is driven to rotate in the clockwise direction in plan view, and a signal is transmitted from the switching portion 709 to the second motor 7032 via the second lead 7082, so that the second gear 7022 is driven to rotate in the clockwise direction in plan view, so that the second motor 7032 is driven. The first motor 7031 and the second motor 7032 start driving at the same time, and drive the first gear 7021 and the second gear 7022 at the same rotational speed, respectively.

The first sector gear 7011 engaged with the first gear 7021 rotates counterclockwise by the clockwise rotation of the first gear 7021, and thereby the right front wheel 1021 supported by the first sector gear 7011 rotates leftward in a direction parallel to the ground. At the same time, the second gear segment 7012 engaged with the second gear 7022 is rotated counterclockwise by the clockwise rotation of the second gear 7022, and thereby the left wheel 1022 supported on the front side of the second gear segment 7012 is rotated leftward in a direction parallel to the ground. Since the first gear 7021 and the second gear 7022 are driven at the same rotational speed, the leftward rotational speeds of the front right wheel 1021 and the front left wheel 1022 are the same. The left rotation angles of the front right wheel 1021 and the front left wheel 1022 are also the same. For example, while the left rotation operating unit 7062 is being pressed, the front right wheel 1021 and the front left wheel 1022 simultaneously start the rotation of the front right wheel 1021 and the front left wheel 1022 to the left in the horizontal direction with respect to the ground, continue the left rotation at the same rotation speed, and stop the left rotation when the pressing operation of the left rotation operating unit 7062 is stopped.

In this way, when the operator wants to adjust the movement direction of the mobile bed 100 for a medical imaging apparatus to the left while holding the handle 103 and moving the mobile bed 100 for a medical imaging apparatus, the operator can adjust the movement direction of the bed to the left by operating the left rotation operating unit 7062 without removing the hand from the handle 103.

On the other hand, when the operator wants to adjust the movement direction of the mobile medical imaging apparatus bedding 100 to the right while holding the handle 103 and moving the mobile medical imaging apparatus bedding 100, the operator may operate the right rotating operation unit 7061 without removing the hand from the handle 103.

As described above, according to the present embodiment, when the operator wants to change the moving direction of the mobile bed 100 for a medical image capturing device while holding the handle 103 and moving the mobile bed 100 for a medical image capturing device, the operator can adjust the moving direction of the bed while moving the bed by operating the right-side rotating operation portion 7061 or the left-side rotating operation portion 7062 provided on the handle 103 without removing the hand from the handle 103, and thus the bed can be easily moved, and the burden on the operator involved in the movement of the bed can be reduced.

In addition, it may be: the right rotary operation portion 7061 and the left rotary operation portion 7062 are, for example, pressably connected to a member connecting the grip portion 103 and the main body portion 101, and are provided at the following positions in proximity to the grip portion 103: when the operator holds the handle portion 103 and moves the movable bed 100 for a medical imaging apparatus, the operator can operate the right-side rotating operation portion 7061 or the left-side rotating operation portion 7062 without removing his or her hand from the handle portion 103.

Note that, although the instruction signals from the right and left rotation operating portions 7061 and 7062 are transmitted between the right and left rotation operating portions 7061 and 7062 and the switching portion 709 via a wire, the instruction signals from the right and left rotation operating portions 7061 and 7062 may be wirelessly transmitted between the right and left rotation operating portions 7061 and 7062 and the switching portion 709, and the direction of the rotational force transmitted to the first and second gears 7021 and 7022 may be switched by transmitting a signal from the switching portion 709 to the first and second motors 7031 and 7032.

(fourth embodiment)

In each of the above embodiments, the connection portion 201 and the rotation mechanism 105 are provided in front of the movable bed 100 for a medical image capturing device so that the wheels 102 in the pair of left and right wheels 102 in front of the movable bed 100 for a medical image capturing device are driven by the rotation mechanism 105, and the rear wheels 102 are free wheels, but the above embodiments can be applied to both the front and rear wheels 102.

For example, the rotation mechanism of the third aspect is applied to the rear right wheel and the rear left wheel in addition to the front right wheel 1021 and the front left wheel 1022. In such a configuration, for example, when the left rotation operating unit 7062 is operated, the front first gear 7021 and the front second gear 7022, and the rear right gear and the rear left gear all rotate in the same clockwise direction at the same rotational speed by the rotational power from the motor, and the front first sector gear 7011 and the front second sector gear 7012, and the rear right sector gear and the rear left sector gear rotate in the opposite clockwise direction, and the front right wheel 1021 and the front left wheel 1022, and the rear right wheel and the rear left wheel rotate in the left direction parallel to the ground at the same rotational speed. When the right rotation operating unit 7061 is operated, the front right wheel 1021 and the front left wheel 1022, and the rear right wheel and the rear left wheel simultaneously rotate at the same rotational speed in the direction parallel to the ground surface and rightward by the operation of the same mechanism.

As described above, according to the present embodiment, when the operator wants to change the moving direction of the mobile bed 100 for a medical imaging apparatus while holding the handle 103 and moving the mobile bed 100 for a medical imaging apparatus, the operator can adjust the moving direction of the bed while moving the bed by operating the right-side rotating operation portion 7061 or the left-side rotating operation portion 7062 provided in the handle 103 without removing the hand from the handle 103. Further, since the direction adjustment can be performed for the right and left paired wheels on the handle portion side in addition to the right and left paired wheels in front, for example, the movable bed 100 for a medical imaging apparatus can be easily moved in the short side direction of the main body portion 101, and the load of the operator accompanying the movement of the bed can be reduced.

The movable bed according to each of the above embodiments may be connected to a medical image capturing apparatus main body of the medical image capturing apparatus for capturing an image of a subject, and may be a part of the medical image capturing apparatus.

In addition, the MRI apparatus is an example of a medical image capturing apparatus, and the movable bed according to each of the above embodiments may be connected to an MRI apparatus main body that houses a magnet of the MRI apparatus and captures an image of a subject, and the movable bed may be a part of the MRI apparatus.

While several embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various manners, and various omissions, substitutions, combinations, and changes can be made without departing from the gist of the present invention. These embodiments and modifications are included in the scope and gist of the present invention, and are included in the present invention described in the claims and the equivalent scope thereof.

Claims (7)

1. A mobile bed, comprising:

a main body having a top plate on which a subject is placed;

a handle portion provided to the main body;

wheels that move on the ground to move the body;

a bed bottom located below the main body;

a connecting portion that connects the wheel and the bed bottom, supports the wheel so as to be rotatable in a moving direction, and connects the connecting portion to the bed bottom and the connecting portion so as to be rotatable in a horizontal direction of the floor surface;

a rotation mechanism that is disposed on the bed bottom and rotates the connection portion around the connection portion as a rotation center; and

and a rotation operation unit that is provided on the handle unit or in the vicinity of the handle unit, is connected to the rotation mechanism, and operates the rotation mechanism to rotate the connection unit.

2. The mobile bed according to claim 1, wherein the movable bed is a bed top,

the connecting part has: a first link having a first connecting portion and a second connecting portion on the bed bottom side of a right wheel of the pair of right and left wheels; and a third link having a fourth connection portion and a third connection portion on the bed bottom side of a left wheel of the pair of left and right wheels,

the rotation operation part is provided with a left rotation operation part and a right rotation operation part,

the rotating mechanism comprises:

a second link that is rotatably coupled to the first link with the second coupling portion as a rotation center, and that is rotatably coupled to the third link with the third coupling portion as a rotation center;

a first wire rod that connects the second connection portion and the left rotation operation portion; and

a second wire rod that connects the third connecting portion and the right-side rotation operating portion.

3. The mobile bed according to claim 1, wherein the movable bed is a bed top,

the connecting part has:

a first link having a first connecting portion and a second connecting portion on the bed bottom side of a right wheel of the pair of right and left wheels; and

a third link having a fourth connection portion and a third connection portion on the bed bottom side of a left wheel of the pair of left and right wheels,

the rotation operation part is provided with a left rotation operation part and a right rotation operation part,

the rotating mechanism comprises:

a motor provided on the bed bottom;

a gear rotated by the rotational power of the motor;

a rack that is coupled to the first link so as to be rotatable about the second coupling portion as a rotation center, and that is coupled to the third link so as to be rotatable about the third coupling portion as a rotation center, and that has a surface on which a concave-convex portion is formed to mesh with the gear;

a first wire connected between the motor and the left rotation operating unit, the first wire transmitting a signal generated based on an operation of the left rotation operating unit to the motor;

a second wire connected between the motor and the right-side rotation operation unit, the second wire transmitting a signal to the motor by operation of the right-side rotation operation unit; and

a switching portion that switches a direction of the rotational force based on the motor according to a transmission signal generated based on the operation of the left rotational operation portion and a transmission signal generated based on the operation of the right rotational operation portion, thereby switching a rotational direction of the gear.

4. The mobile bed according to claim 1, wherein the movable bed is a bed top,

the connecting part has:

a first sector gear having a first coupling portion on the bottom side of the bed of a right wheel of the right and left paired wheels, the first sector gear being rotatable about the first coupling portion as a rotation center; and a second sector gear having a second coupling portion on the bed bottom side of a left wheel of the pair of left and right wheels, the second sector gear being rotatable about the second coupling portion as a rotation center,

the rotation operation part is provided with a left rotation operation part and a right rotation operation part,

the rotating mechanism comprises:

a first gear that is meshed with the first sector gear, is supported by the bed bottom, and is rotatable about a third connecting portion as a rotation center;

a second gear that is meshed with the second sector gear, is supported by the bed bottom, and is rotatable about a fourth connecting portion as a rotation center;

a first motor that applies rotational power to the first gear;

a second motor that applies rotational power to the second gear;

a wire connected between the right and left rotational operation portions and the first and second motors, and transmitting a signal generated by an operation of the right or left rotational operation portion to the first and second motors;

and a switching unit that switches a direction of rotational force of the first motor and the second motor based on a transmission signal generated by an operation of the left rotation operation unit and a transmission signal generated by an operation of the right rotation operation unit, thereby switching a rotational direction of the gear.

5. The mobile bed according to any one of claims 1 to 4, wherein the movable bed is a bed table,

the wheels are wheels in front of and/or behind the movable bed.

6. A medical imaging apparatus including a movable bed connected to a medical imaging apparatus main body of the medical imaging apparatus,

the movable type bedding table is provided with:

a main body having a top plate on which a subject is placed;

a handle portion provided to the main body;

wheels that move on the ground to move the body;

a bed bottom located below the main body;

a connecting portion that connects the wheel and the bed bottom, supports the wheel so as to be rotatable in a moving direction, and connects the connecting portion to the bed bottom and the connecting portion so as to be rotatable in a horizontal direction of the floor surface;

a rotation mechanism that is disposed on the bed bottom and rotates the connection portion around the connection portion as a rotation center; and

and a rotation operation unit that is provided on the handle unit or in the vicinity of the handle unit, is connected to the rotation mechanism, and operates the rotation mechanism to rotate the connection unit.

7. An MRI apparatus comprising a movable bed connected to an MRI apparatus main body housing a magnet of the MRI apparatus,

the movable type bedding table is provided with:

a main body having a top plate on which a subject is placed;

a handle portion provided to the main body;

wheels that move on the ground to move the body;

a bed bottom located below the main body;

a connecting portion that connects the wheel and the bed bottom, supports the wheel so as to be rotatable in a moving direction, and connects the connecting portion to the bed bottom and the connecting portion so as to be rotatable in a horizontal direction of the floor surface;

a rotation mechanism that is disposed on the bed bottom and rotates the connection portion around the connection portion as a rotation center; and

and a rotation operation unit that is provided on the handle unit or in the vicinity of the handle unit, is connected to the rotation mechanism, and operates the rotation mechanism to rotate the connection unit.

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